{
  "resourceType": "CodeSystem",
  "id": "filter-operator",
  "meta": {
    "lastUpdated": "2017-04-18T21:44:43.294+00:00"
  },
  "text": {
    "status": "generated",
    "div": "<div xmlns=\"http://www.w3.org/1999/xhtml\"><h2>FilterOperator</h2><div><p>The kind of operation to perform as a part of a property based filter.</p></div><p>This code system http://hl7.org/fhir/filter-operator defines the following codes:</p><table class=\"codes\"><tr><td><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td>=\r\n                  <a name=\"filter-operator-.61\"></a></td><td>Equals</td><td>The specified property of the code equals the provided value.</td></tr><tr><td>is-a\r\n                  <a name=\"filter-operator-is-a\"></a></td><td>Is A (by subsumption)</td><td>Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (i.e. include child codes)</td></tr><tr><td>descendent-of\r\n                  <a name=\"filter-operator-descendent-of\"></a></td><td>Descendent Of (by subsumption)</td><td>Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself (i.e. include child codes)</td></tr><tr><td>is-not-a\r\n                  <a name=\"filter-operator-is-not-a\"></a></td><td>Not (Is A) (by subsumption)</td><td>The specified property of the code does not have an is-a relationship with the provided value.</td></tr><tr><td>regex\r\n                  <a name=\"filter-operator-regex\"></a></td><td>Regular Expression</td><td>The specified property of the code  matches the regex specified in the provided value.</td></tr><tr><td>in\r\n                  <a name=\"filter-operator-in\"></a></td><td>In Set</td><td>The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list).</td></tr><tr><td>not-in\r\n                  <a name=\"filter-operator-not-in\"></a></td><td>Not in Set</td><td>The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list).</td></tr><tr><td>generalizes\r\n                  <a name=\"filter-operator-generalizes\"></a></td><td>Generalizes (by Subsumption)</td><td>Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (e.g. include parent codes)</td></tr><tr><td>exists\r\n                  <a name=\"filter-operator-exists\"></a></td><td>Exists</td><td>The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values)</td></tr></table></div>"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-ballot-status",
      "valueString": "Informative"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 5
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "vocab"
    }
  ],
  "url": "http://hl7.org/fhir/filter-operator",
  "identifier": {
    "system": "urn:ietf:rfc:3986",
    "value": "urn:oid:2.16.840.1.113883.4.642.1.472"
  },
  "version": "3.0.1",
  "name": "FilterOperator",
  "status": "draft",
  "experimental": false,
  "date": "2017-04-18T21:44:43+00:00",
  "publisher": "HL7 (FHIR Project)",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://hl7.org/fhir"
        },
        {
          "system": "email",
          "value": "fhir@lists.hl7.org"
        }
      ]
    }
  ],
  "description": "The kind of operation to perform as a part of a property based filter.",
  "caseSensitive": true,
  "valueSet": "http://hl7.org/fhir/ValueSet/filter-operator",
  "content": "complete",
  "concept": [
    {
      "code": "=",
      "display": "Equals",
      "definition": "The specified property of the code equals the provided value."
    },
    {
      "code": "is-a",
      "display": "Is A (by subsumption)",
      "definition": "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, including the provided concept itself (i.e. include child codes)"
    },
    {
      "code": "descendent-of",
      "display": "Descendent Of (by subsumption)",
      "definition": "Includes all concept ids that have a transitive is-a relationship with the concept Id provided as the value, excluding the provided concept itself (i.e. include child codes)"
    },
    {
      "code": "is-not-a",
      "display": "Not (Is A) (by subsumption)",
      "definition": "The specified property of the code does not have an is-a relationship with the provided value."
    },
    {
      "code": "regex",
      "display": "Regular Expression",
      "definition": "The specified property of the code  matches the regex specified in the provided value."
    },
    {
      "code": "in",
      "display": "In Set",
      "definition": "The specified property of the code is in the set of codes or concepts specified in the provided value (comma separated list)."
    },
    {
      "code": "not-in",
      "display": "Not in Set",
      "definition": "The specified property of the code is not in the set of codes or concepts specified in the provided value (comma separated list)."
    },
    {
      "code": "generalizes",
      "display": "Generalizes (by Subsumption)",
      "definition": "Includes all concept ids that have a transitive is-a relationship from the concept Id provided as the value, including the provided concept itself (e.g. include parent codes)"
    },
    {
      "code": "exists",
      "display": "Exists",
      "definition": "The specified property of the code has at least one value (if the specified value is true; if the specified value is false, then matches when the specified property of the code has no values)"
    }
  ]
}